Mark Thiessen Wins 8th Not Guilty in 2014 Where Blood Came into Evidence

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Local criminal defense attorney, Mark Thiessen, secured two notable victories in separate DWI cases this year earning not guilty verdicts for clients. This is Thiessen’s 8th not guilty verdict where a blood test came into evidence and the jury returned a not guild verdict.

Client was pulled over for driving with no lights on at 2:45 AM on a Saturday on Bellaire Boulevard. He pulled over safely and timely. The car was his mother’s so he was not used to having to turn on the lights and thought they were automatic. Per the records, the officer arrested him because he argued with her that he was not intoxicated. The station video showed the client acting very polite and standings still. The 19 year old client was scared and asked for an attorney. The state got a blood search warrant and took his blood. The Houston Police Department blood lab tested it at a 0.158. Our expert, Amanda Culbertson, was able to show the following errors in the HPD blood test: pipettes out of calibration, known standards out of calibration, cracked vial, the machine labeling chromatograms as 2017 and mislabeling vials. HPD analysts watched Culbertson testify and could not state anything she said was untrue. The jury used the evidence that was presented and made the not-guilty judgement .

About Thiessen Law Firm:
Since Thiessen Law Firm opened its doors in July 2011, the firm has experienced tremendous success. Having already represented hundreds of DWI clients, achieved numerous dismissals and won twenty-three jury trials, Thiessen Law Firm has now expanded to include two associates, two paralegals, a marketing director, a process server and an investigator. Thiessen Law Firm shares the top floor of 1221 Studewood, Houston, with Jed Silverman and Associates and neighbors another lawyer’s office downstairs. Additionally, Mark Thiessen has joined forces with attorney Chris Samuelson to create Samuelson Thiessen, L.L.P. which handles cases in Colorado.